Table 2.
Number of individuals with incomplete adherence by the different adherence measures and standardized cut-off points among adults in selected antiretroviral treatment programs in Tanzania, Uganda and Zambia, 2011.
| Complete population |
Sample from sites with VL measurements |
||||
|---|---|---|---|---|---|
| Cut-off | n/N a | % less than the cut-off | n/N b | % | |
| Self-reported adherence measures | |||||
| % ARV drugs missed – last 3 days | 100% | 249/4299 | 5.8 | 109/1470 | 7.4 |
| 95% | 249/4299 | 5.8 | 109/1470 | 7.4 | |
| 90% | 235/4299 | 5.5 | 106/1470 | 7.2 | |
| 80% | 130/4299 | 3.0 | 55/1470 | 3.7 | |
| % ARV drugs missed – last 30 days | 100% | 517/4289 | 12.1 | 239/1460 | 16.4 |
| 95% | 113/4289 | 2.6 | 43/1460 | 2.9 | |
| 90% | 46/4289 | 1.1 | 14/1460 | 1.0 | |
| 80% | 22/4289 | 0.5 | 8/1460 | 0.5 | |
| % ARV drugs missed – visual analogue scale, last 30 days |
100% | 2599/4450 | 58.4 | 682/1484 | 46.0 |
| 95% | 1730/4450 | 38.9 | 427/1484 | 28.8 | |
| 90% | 1119/4450 | 25.1 | 253/1484 | 17.0 | |
| 80% | 511/4450 | 11.5 | 85/1484 | 5.7 | |
| Case Adherence Index | >10 | 751/4473 | 16.8 | 304/1493 | 20.4 |
| Missed ≥48 consecutive hours of ARV drugs in last 3 months |
Yes | 141/4425 | 3.2 | 64/1471 | 4.4 |
| Other adherence measures | |||||
| Healthcare provider report | 100% | 3150/4415 | 71.3 | 792/1463 | 54.1 |
| 95% | 1835/4415 | 41.6 | 476/1463 | 32.5 | |
| 90% | 1236/4415 | 28.0 | 302/1463 | 20.6 | |
| 80% | 594/4415 | 13.5 | 157/1463 | 10.7 | |
| Pharmacy medication possession ratio (MPR) |
100% | 3261/4070 | 80.1 | 1275/1450 | 87.9 |
| 95% | 2131/4070 | 52.4 | 837/1450 | 57.7 | |
| 90% | 1634/4070 | 40.1 | 659/1450 | 45.4 | |
| 80% | 979/4070 | 24.1 | 429/1450 | 29.6 | |
a
Number nonadherent/total number of individuals with data in the population. ARV, antiretroviral.
b
The denominators for these adherence measures vary due to missing data mainly on the current ART regimen and associated daily pill burden needed to calculate adherence.